The 5Pack Heavy Duty Oil Tanks Grommets provide a seamless and reliable seal for 13mm to 20mm tanks. Constructed with robust rubber material, they ensure a secure fit and protect against leaks, increasing the lifespan of your equipment. These grommets feature a 5 / 8inch height and a convenient rubber seal, making them perfect for handling various oil tank sizes, from H80 to HM80. The rubber seat washer provides additional grip and longevity. Compatible with a wide range of industrial applications, they come in a pack of 5 for easy stocking and saving. Choose the Heavy Duty Oil Tanks Grommets today and enjoy the benefits of a durable, leak-proof seal.